Translation:
The setting of the gear mechanism on the Ilo 150 and 175
cc engines in the following way: Add into 2nd
gear and unscrew the cap of the shift mechanism. Loosen
nut A on the gearshift shaft and pull the lever
B, so it is easy to turn the shaft.

Turn
gear lever plate C and B, so that both internal
switches control is on the same distance from the cogs
the blocking piece D Tighten the nut A. Check
then to 2nd gear goes into impeccably both on the up
and downshifting.

The two eccentrics F serves to limit
alternating movement, so that shifting from 1st gear to
3rd prevented. Eccentrics must be set so,
To stop E abuts the lower eccentric upshift from
1st gear to 2nd gear and toward the upper eccentric when downshifting from
3rd to 2nd.